Integumentary System

What are the five layers of the epidermis?

• stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

• stratum reticulare

• stratum papillare

• stratum dermis

Describe the structure of the dermis.

• The dermis is made up of only blood vessels.

• The dermis is composed of the epidermis and hypodermis.

• The dermis is composed of the papillary dermis and the reticular dermis.

• The dermis is a single layer of skin.

What is the function of hair follicles in the skin?

• Hair growth

• Sweat production

• Nail growth

• Muscle contraction

Tags

NGSS.MS-LS1-5

Explain the role of sweat glands in maintaining body temperature.

• Sweat glands play a role in blood circulation

• Sweat glands help in digestion by releasing enzymes

• Sweat glands help regulate body temperature by releasing sweat that evaporates and cools the body.

• Sweat glands produce oil to keep the skin moisturized

How do sebaceous glands contribute to skin health?

• Sebaceous glands contribute to skin health by producing melanin, which protects the skin from UV rays

• Sebaceous glands contribute to skin health by producing collagen, which maintains skin elasticity

• Sebaceous glands contribute to skin health by producing sebum, which moisturizes, protects, and maintains the skin's pH balance.

• Sebaceous glands contribute to skin health by producing sweat, which cleanses the skin

What is the primary function of melanocytes?

• Protecting the skin from UV radiation

• Producing vitamin D

• Storing excess fat

• Regulating body temperature

Which layer of the epidermis contains melanocytes?

• Stratum spinosum

• Stratum granulosum

• Stratum corneum

• Stratum basale

What is the composition of sweat produced by eccrine glands?

• Primarily carbon dioxide

• Mainly oil and grease

• Mainly water, electrolytes (sodium, chloride, potassium), urea, ammonia, sugars, lactic acid

• Consists of iron and copper

How does the dermis support the epidermis?

• Structural integrity, blood supply, and nerve endings

• Muscle contraction, lymphatic drainage, and hormone production

What is the difference between apocrine and eccrine sweat glands?

• Eccrine glands are smaller and produce a thinner secretion compared to apocrine glands.

• Apocrine sweat glands are larger, located in areas with hair follicles, and produce a thicker secretion compared to eccrine sweat glands.

• Eccrine glands are larger and produce a thicker secretion compared to apocrine glands.

• Apocrine glands are located in areas without hair follicles.